Finding the Fourth Proportional to 178,881.66, 246,855.87 and 102,400.34
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Solution
The fourth proportional to 178,881.66, 246,855.87 and 102,400.34 is: 141,311.99
Step by Step Solution
- Step 1: Write the proportion equation
178,881.66 : 246,855.87 = 102,400.34 : x - Step 2: Convert to fraction form
178,881.66/246,855.87 = 102,400.34/x - Step 3: Cross multiply
178,881.66x = 246,855.87 × 102,400.34 - Step 4: Simplify right side
178,881.66x = 25,278,123,784.72 - Step 5: Solve for x
x = 25,278,123,784.72/178,881.66 - Step 6: Final answer
x = 141,311.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.